The eZV-440 is a native BACnet® controller with an integrated airflow sensor and damper actuator for VAV applications, available in both configurable and hybrid-programmable versions.

The eZV communicates using BACnet MS/TP on its RS-485 main LAN port. It also has a RS-485 subLAN port for the optional addition of a Delta LINKnet network sensor(s).


The eZV-440 covers a wide range of VAV configurations including multi-stage reheat with analog, binary or floating control, and series or parallel fan boxes.

The eZV-440 comes pre-loaded with a simple-to-configure factory algorithm; the hybrid-programmable eZVP-440 option allows customization of the built-in algorithms.

  • Native BACnet firmware allows easy integration with any BACnet system
  • Local scheduling, trending, and alarming support
  • Built-in configurable VAV algorithms for quick setup and commissioning
  • Optional hybrid-programmable option allows customization for non-standard sequences or repurposing unused I/O
  • Universal outputs provide flexibility for any combination of analog, binary, or floating output stages
  • Firmware upgrade and database load / save over the network
  • RS-485 subLAN supports up to 4 DNS or eZNS LINKnet network sensors


BACnet Device Profile
BACnet Application Specific Controller (B-ASC)

Inputs (External)
4 Universal Inputs (12bit), software configurable for:
   10 KΩ Thermistor
   Dry Contact (using 10K setting)

Outputs (External)
4 Universal Outputs, software configurable for:
   Analog 0-10VDC, 5 mA max
   24 VAC TRIAC, 0.5 A max

Airflow Sensor
0-2 in. True Differential pressure sensor

Actuator I/O
1 Analog Input (0-10V) for actuator feedback
1 Universal Output and 1 TRIAC Output for damper control. Supports analog or floating actuator types.

Actuator Options
Belimo (-AB / -AFB)
   45 in-lbs (5 Nm) nominal torque
   Optional Position Feedback

Siemens (-AS / -ASB)
   44 in-lbs (5 Nm) nominal torque
   Optional Position Feedback


ARM Cortex M3 CPU

Device Addressing
Set via DIP switch or software

Communication Ports
RS-485 NET1
   BACnet MS/TP @ 38400 or 76800 bps (default)

RS-485 NET2
   Delta LINKnet @ 76800 bps (for addition of up to 4 DNS or eZNS network sensors)

Removable screw-type terminal connectors

Wiring Class
Class 2 / SELV

24 VAC, 50/60 Hz
85 VA max. (11 VA excluding TRIAC loading)

0°-55°C (32°to 131°F)
10-95% RH (non-condensing)

eZV-440 with actuator:
20.4 x 15.7 x 7.4 cm (8.1 x 6.2 x 2.9 in.)
900g (2.0 lb)

eZV-440 without actuator:
12.2 x 17.5 x 4.2 cm (4.8 x 6.9 x 1.7 in.)
250g (0.55 lb)

FCC Class B